#664321 is a mid-toned, warm yellow. On the Color Lab it reads organic and grounded, with a faded, vintage edge. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #664321 works with other colors. Named schemes with #664321 in its natural role, and a note on why the supporting colors balance it.
This palette keeps Sepia as the dominant warm neutral, balanced by muted terracotta and olive earth tones and grounded by a deep espresso anchor.
Sepia anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.
Sepia plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Sepia holds the warm center of this desert palette with sand and clay beside it, a muted-sage accent and a dark-brown anchor.
Sepia is the single accent in this high-contrast editorial system — set on near-white paper against near-black ink, with a warm grey and a desaturated tint of Sepia carrying the quiet middle.
How #664321 actually behaves in design work — read from its OKLCH lightness, chroma and hue, not just its raw numbers. Ten signals to help you decide where this color earns its place.
Not a swatch to memorise — a color to build with. Here is #664321 at work across the surfaces designers actually ship.
:root {
--color-base: #664321;
--color-base-rgb: 102 67 33;
--color-base-oklch: oklch(41.5% 0.069 63.1);
--color-50: #FCF7F3;
--color-100: #F6EBE0;
--color-200: #EBD6C1;
--color-300: #D9B897;
--color-400: #C3996F;
--color-500: #A77A4E;
--color-600: #816141;
--color-700: #5C4733;
--color-800: #3D3024;
--color-900: #261F18;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
sepia: {
50: '#FCF7F3',
100: '#F6EBE0',
200: '#EBD6C1',
300: '#D9B897',
400: '#C3996F',
500: '#A77A4E',
600: '#816141',
700: '#5C4733',
800: '#3D3024',
900: '#261F18',
},
}
$base: #664321; $base-ink: #FFFFFF; $base-50: #FCF7F3; $base-100: #F6EBE0; $base-200: #EBD6C1; $base-300: #D9B897; $base-400: #C3996F; $base-500: #A77A4E; $base-600: #816141; $base-700: #5C4733; $base-800: #3D3024; $base-900: #261F18; $base-hover: #50351A; $base-subtle: #DCC6B0;
{
"color": {
"base": {
"value": "#664321",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#FCF7F3",
"type": "color"
},
"100": {
"value": "#F6EBE0",
"type": "color"
},
"200": {
"value": "#EBD6C1",
"type": "color"
},
"300": {
"value": "#D9B897",
"type": "color"
},
"400": {
"value": "#C3996F",
"type": "color"
},
"500": {
"value": "#A77A4E",
"type": "color"
},
"600": {
"value": "#816141",
"type": "color"
},
"700": {
"value": "#5C4733",
"type": "color"
},
"800": {
"value": "#3D3024",
"type": "color"
},
"900": {
"value": "#261F18",
"type": "color"
}
}
}
}